Suzano selects ANDRITZ for sustainable sulfuric acid plant at new pulp mill in Brazil

The ANDRITZ SulfoLoop sulfuric acid plant produces commercial grade, concentrated sulfuric acid © ANDRITZ

(PRESS RELEASE) GRAZ, 18-Jan-2023 — /EuropaWire/ — ANDRITZ, an international technology group based in Austria active in the supplies of plants, has received an order from Brazilian pulp producer Suzano to deliver a SulfoLoop concentrated sulfuric acid plant for its new pulp mill in Ribas do Rio Pardo, Brazil. The plant, which is part of ANDRITZ’s CircleToZero product portfolio, will have the capacity to produce 153 tons of commercial grade (>97%) sulfuric acid per day from the pulp mill’s concentrated odorous gases and elemental sulfur. This will make the mill completely self-sufficient in sulfuric acid and recycling sulfur from the waste streams.

The SulfoLoop solution is based on the Wet-gas Sulfuric Acid (WSA) technology, which converts wet, sulfur-rich gases and elemental sulfur into sulfuric acid. The sulfuric acid mill will help the new Suzano mill in Ribas do Rio Pardo control the sodium and sulfur (Na/S) balance and the sulfidity of the pulp mill, and improve resource-efficiency by reducing the amount of sulfate discharged. Additionally, the sulfuric acid plant will reduce the need for hazardous sulfuric acid transport to the mill, resulting in a significant reduction in truck transportation volume.

The sulfuric acid plant also meets very strict air emission limits and therefore brings a significant improvement to the overall footprint of the new Suzano plant in Ribas do Rio Pardo. This order confirms the excellent business relationship between ANDRITZ and Suzano, with ANDRITZ currently in the process of supplying all pulp mill technology and process equipment for the new Suzano plant. Once completed, the pulp mill will be the world’s largest plant with a single eucalyptus pulp production line.

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International technology group ANDRITZ offers a broad portfolio of innovative plants, equipment, systems, services and digital solutions for a wide range of industries and end markets. ANDRITZ is a global market leader in all four of its business areas – Pulp & Paper, Metals, Hydro, and Separation. Technological leadership, global presence and sustainability are the cornerstones of the group’s strategy, which is focused on long-term profitable growth. The publicly listed group has around 27,900 employees and over 280 locations in more than 40 countries.

ANDRITZ Pulp & Paper provides sustainable technology, automation, and service solutions for the production of all types of pulp, paper, board and tissue. The technologies and services focus on maximum utilization of raw materials, increased production efficiency, lower overall operating costs as well as innovative decarbonization strategies and autonomous plant operation. Boilers for power generation, flue gas cleaning systems, various nonwoven technologies, panelboard (MDF) production systems, as well as recycling and shredding solutions for numerous waste materials also form a part of this business area. State-of-the-art IIoT technologies as part of Metris digitalization solutions complete the comprehensive product offering.

Media contact:

Michael Buchbauer



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